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2007 Confidence Interval Detail
158/Matagorda
158-904/Matagorda ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 37,926,521 0.9643 39,330,624 10 408 .016141745
A 37,445,260 0.8868 42,225,147 9 225 .024929827
A 37,870,356 1.0050 37,681,946 14 164 .016554250
A 37,454,804 0.9739 38,458,573 12 105 .008191638
C 5,463,807 0.8358 6,537,218 14 313 .153489207
C 5,311,601 0.6925 7,670,182 7 83 .526401828
C 5,270,360 0.9110 5,785,247 9 53 .043944719
C 5,206,175 0.9877 5,271,008 7 30 .001690195
D3 7,331,360 1.0261 7,144,879 13 1,273 .009583667
Random Totals: 179,280,244   190,104,824 95 2,654  
Catg D1 Exception Values: 2,594,993   2,777,840      
Total Test Values (4): 181,875,237   192,882,664      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,644,133

Confidence Interval Values (5)

Local Test Value: 181,875,237 (Outside Confidence Interval)
State Lower Limit: 183,238,531 (State Test Value minus Margin of Error Percent)
State Upper Limit: 202,526,797 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 219,230,823 (See ISD Summary Worksheet)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories

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